Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.141643E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T07:38:56+0800
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    1 Object 1

    AOE ID 47399
    NORAD ID 47399
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69720
    NORAD ID 69720
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2121 STARLINK-38003
    Time of Closest Approach 2026-10-20T23:37:26+0000
    Collision Probability (Pc) 4.141643E-6
    Conjunction Distance (km) 1.664 km
    Relative Speed (km/s) 11.776 km/s
    Conjunction Risk Parameters R (Radial): -1.424 | I (In-track): -0.54 | C (Cross-track): -0.668
    Collision Risk Index (CRI) 0.47
    X Position (km) -3848.622 -3850.112
    Position Y (km) 1420.356 1420.331
    Position Z (km) 5469.237 5469.975
    Velocity X (km/s) -2.772 -5.046
    Velocity Y (km/s) -7.115 3.581
    Velocity Z (km/s) -0.103 -4.471

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2121 STARLINK-38003
    Semimajor Axis (a) 6846.809 km 6843.632 km
    Eccentricity (e) 0.000142 0.000019
    Inclination (i) 53.1575° 97.2853°
    RAAN 79.4633° 327.0793°
    Perigee Argument 108.9630° 293.2713°
    Mean Anomaly (M) 251.1526° 66.8510°
    Apogee 469.643 km 465.628 km
    Perigee 467.701 km 465.362 km
    Orbit Epoch 2026-10-18T13:19:33+0000 2026-10-18T02:10:19+0000

    STARLINK-2121 & STARLINK-38003 Collision Probability (Pc) Trend

    STARLINK-2121 & STARLINK-38003 Collision Probability (Pc) TrendNot Available

    STARLINK-2121 & STARLINK-38003 Miss Distance (Miss Distance) Trend

    STARLINK-2121 & STARLINK-38003 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-38003Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-38003Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2121

    No nearby objects data